[R-390] What's in the window?
frankshughes at aim.com
frankshughes at aim.com
Fri Nov 19 15:46:19 EST 2010
It was manufactured by these guys, I'm sure...
http://www.youtube.com/watch?v=TuhYd9L_d7w
-----Original Message-----
From: r-390-request <r-390-request at mailman.qth.net>
To: r-390 <r-390 at mailman.qth.net>
Sent: Fri, Nov 19, 2010 4:13 am
Subject: R-390 Digest, Vol 79, Issue 16
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Today's Topics:
1. Re: What's in the window? (Barry)
2. Re: What's in the Window? (Tisha Hayes)
3. Re: What's in the window? (John Flood)
4. Re: Dead Bands and bad connections (Flowertime01 at wmconnect.com)
5. Re: What's in the window? (Steve Toth)
6. Re: What's in the window? (Spence Barton)
7. Re: What's in the window? (Cecil Acuff)
8. Re: What's in the window? (Glenn Little WB4UIV)
9. Re: What's in the window? (2002tii)
10. Re: What's in the window? (bavarianradio at comcast.net)
11. Re: What's in the window? (rbethman)
----------------------------------------------------------------------
Message: 1
Date: Thu, 18 Nov 2010 12:32:34 -0500
From: Barry <n4buq at knology.net>
Subject: Re: [R-390] What's in the window?
To: <n4buq at knology.net>, <r-390 at mailman.qth.net>, "Bill Hawkins"
<bill at iaxs.net>
Message-ID: <55391.1290101554 at knology.net>
Content-Type: text/plain; charset="utf-8"
> Barry,
>
> Looking at the parts, I'd say it was an audio amplifier.
> Don't know why the speaker wire is shielded, though.
>
> The last picture is equally enigmatic, but it contains a
> speaker. No telling what the tube on the componentless
> board would be.
>
> Perhaps the oval shaped opening in the third picture is
> the back of the black speaker in the last picture.
>
> Why not ask the seller? He was a regular on this list.
>
> Bill Hawkins
I hadn't thought about the speaker. That would explain the black oval hole.
I noticed the transformer mounted next to the PTO so figured that was a
600-8-ohm transformer and I suppose the CL-80s are mounted on the terminal
strips next to that. What I'm still wondering about is the other "stuff"
mounted next to the PTO further to the front.
As for the seller, as far as I know, I don't know him. The ad quotes Chuck
Rippel but I don't think Chuck is selling that radio. Is K1QAR on this list?
73,
Barry - N4BUQ
------------------------------
Message: 2
Date: Thu, 18 Nov 2010 11:35:25 -0600
From: Tisha Hayes <tisha.hayes at gmail.com>
Subject: Re: [R-390] What's in the Window?
To: r-390 at mailman.qth.net
Message-ID:
<AANLkTimRwYutFzKU=b3eXthbviy9nS5jEuQSzxryQkTx at mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
"Looks like someone bought TOO many of the Replica Collins emblems, and has
to find places to stick them where they don't belong.
That would be as much "appreciated" as a bullet hole decal on the front!"
You can almost see the splitting of atomic nuclei between the EAC tag and
the Collins emblem. Who needs the supercollider when we can bash together
EAC and Collins and tear at the very forces holding our universe together.
Tisha
------------------------------
Message: 3
Date: Thu, 18 Nov 2010 10:06:09 -0800 (PST)
From: John Flood <kb1fqg at yahoo.com>
Subject: Re: [R-390] What's in the window?
To: r-390 at mailman.qth.net
Message-ID: <803270.47612.qm at web84105.mail.mud.yahoo.com>
Content-Type: text/plain; charset=iso-8859-1
Greetings,
?
I know Ted, the seller, he is a regular at Nearfest and other New England?
Fleas as well as active in our local ham club.? I got him hooked on the R-390
drug.??
I got him a couple of radios that?
were offered to me that I didn't have the money for.? He has jumped in with
both?
feet with and has become?pretty good with?them.? I wish I had his free time as
I?
have an open invitation to play at his workshop.? FWIW I have been digging him?
that his recent Ebay offerings are starting to sound like Radio Mart!? However,?
if you figure out what he's getting per hour of his time, I think he could?
report himself?for min. wage violations!? Looks like all his buyers have been?
happy and?it seems that he?is?starting to get Crazy Money for his work.? Better?
him than some of the others I guess.? Yikes I better stop before you guys start?
telling my XYL about my new Boy Friend!
?
Just my $0.01 worth as youz Guyz (and Tisha)?are much better at these toys than?
me?
John Flood KB1FG
?
> ?----- Original Message ----
> > From: rbethman <rbethman at comcast.net>
> > To: r-390 at mailman.qth.net
> > Sent: Thu, November 18, 2010 11:53:53 AM
> > Subject: Re: [R-390] What's in the window?
> >
> > Looks like someone bought TOO many of the Replica Collins emblems, and
> > has to find places to stick them where they don't belong.
> >
> > That would be as much "appreciated" as a bullet hole decal on the front!
> >
> > Bob - N0DGN
> >
> > On 11/18/2010 11:46 AM, Roger Gibboni wrote:
> > > I'm not sure about the speaker question but the winged Collins emblem has
>to
> > > be aftermarket--right? I've never seen an emblem on a 390A.
> > > Roger<http://dulye.com/our-team>? WA3YTM
> >
> > ______________________________________________________________
> > R-390 mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/r-390
> > Help: http://mailman.qth.net/mmfaq.htm
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> >
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> >
>
------------------------------
Message: 4
Date: Thu, 18 Nov 2010 16:25:25 EST
From: Flowertime01 at wmconnect.com
Subject: Re: [R-390] Dead Bands and bad connections
To: r-390 at mailman.qth.net
Message-ID: <3bf9f.1d41a8fe.3a16f3c5 at wmconnect.com>
Content-Type: text/plain; charset="US-ASCII"
Tisha,
Thanks for that tip.
I have used a brand called Black Burn Grease as an electrician. Just a
conductive grease for use in lugs and other connections. 40 Plus years and I
never though to use it in an RF application.
Roger Ruszkowski AI4NI
>
> Another trick on "dirty" connections is to use No-Ox-Id from Sanchem. It is
> actually a conductive "grease like" substance that I first used in the
> power
> industry on bus-bar connections. All it takes is an incredibly tiny amount
> on tube pins or the center pin of coax connectors.
>
> You definitely would not want to use this on a rotary switch where you have
> a wiping contact as you can end up making a conductive track across switch
> positions. I think the last place I saw it sold went for around $5 for a 4
> oz container. That would be enough to last you for the rest of your life in
> our type of application.
>
> http://www.sanchem.com/aSpecialE.html
>
> We also used it inside of compression fittings for 500-MCM AWG cables and
> on
> split-nut type connections.
>
> --
> Ms. Hayes/ AA4HA
>
</HTML>
------------------------------
Message: 5
Date: Thu, 18 Nov 2010 18:14:54 -0800 (PST)
From: Steve Toth <stoth47 at yahoo.com>
Subject: Re: [R-390] What's in the window?
To: r-390 at mailman.qth.net
Message-ID: <424832.18046.qm at web62306.mail.re1.yahoo.com>
Content-Type: text/plain; charset=iso-8859-1
Looks like an R390A class AB interoceter audio nexis interface board to
me......? Tisha?
?
-- Steve
"Think Quickly, Speak Slowly, Work Diligently, Live Simply"
--- On Thu, 11/18/10, Barry <n4buq at knology.net> wrote:
From: Barry <n4buq at knology.net>
Subject: [R-390] What's in the window?
To: r-390 at mailman.qth.net
Date: Thursday, November 18, 2010, 8:19 AM
http://cgi.ebay.com/Late-model-EAC-Collins-R-390A-R390A-R-390-/280589662946?pt=LH_DefaultDomain_0&hash=item4154727ae2
- or -
eBay item 280589662946
Does anyone know what's being shown in the third picture?
Barry - N4BUQ
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Message: 6
Date: Thu, 18 Nov 2010 19:21:24 -0800
From: Spence Barton <ence-ack at riousa.com>
Subject: Re: [R-390] What's in the window?
To: r-390 at mailman.qth.net
Message-ID: <4CE5ED34.2060009 at riousa.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
A retro-encabulator.
------------------------------
Message: 7
Date: Thu, 18 Nov 2010 21:36:42 -0600
From: "Cecil Acuff" <chacuff at cableone.net>
Subject: Re: [R-390] What's in the window?
To: "Les Locklear" <leslocklear at cableone.net>, <n4buq at knology.net>,
<r-390 at mailman.qth.net>
Message-ID: <AD7C3B131EC9418696CF0212077B065B at acuffmain>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Well one thing is for sure...It's running the Kielbasa mod since it's
ballast tube is on the table in one of the pictures.....
Dead horse walking.....
Cecil
K5DL
----- Original Message -----
From: "Les Locklear" <leslocklear at cableone.net>
To: <n4buq at knology.net>; <r-390 at mailman.qth.net>
Sent: Thursday, November 18, 2010 10:31 AM
Subject: Re: [R-390] What's in the window?
> >From the text.........
>
> "8 ohm audio stage nestled in the space next to the PTO. (shown in the
> photos)."
>
> Les
>
>
> ----- Original Message -----
> From: Barry
> To: r-390 at mailman.qth.net
> Sent: Thursday, November 18, 2010 10:19 AM
> Subject: [R-390] What's in the window?
>
>
>
> http://cgi.ebay.com/Late-model-EAC-Collins-R-390A-R390A-R-390-/280589662946?pt=LH_DefaultDomain_0&hash=item4154727ae2
>
> - or -
>
> eBay item 280589662946
>
> Does anyone know what's being shown in the third picture?
>
> Barry - N4BUQ
>
> ______________________________________________________________
> R-390 mailing list
> Home: http://mailman.qth.net/mailman/listinfo/r-390
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>
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------------------------------
Message: 8
Date: Thu, 18 Nov 2010 23:17:54 -0500
From: Glenn Little WB4UIV <glennmaillist at bellsouth.net>
Subject: Re: [R-390] What's in the window?
To: n4buq at knology.net,<r-390 at mailman.qth.net>
Message-ID: <6.2.3.4.2.20101118231451.03d302b0 at mail.bellsouth.net>
Content-Type: text/plain; charset="us-ascii"; format=flowed
That would probably be the 8 Ohm after market audio stage.
Were any R390A receivers built with Teflon wire?
All that I have seen were built with nylon covered PVC (or at least
that is what it looks like).
73
Glenn
WB4UIV
At 11:19 AM 11/18/2010, Barry wrote:
>http://cgi.ebay.com/Late-model-EAC-Collins-R-390A-R390A-R-390-/280589662946?pt=LH_DefaultDomain_0&hash=item4154727ae2
>
>- or -
>
>eBay item 280589662946
>
>Does anyone know what's being shown in the third picture?
>
>Barry - N4BUQ
>
>______________________________________________________________
>R-390 mailing list
>Home: http://mailman.qth.net/mailman/listinfo/r-390
>Help: http://mailman.qth.net/mmfaq.htm
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>
>This list hosted by: http://www.qsl.net
>Please help support this email list: http://www.qsl.net/donate.html
------------------------------
Message: 9
Date: Fri, 19 Nov 2010 04:00:27 -0500
From: 2002tii <bmw2002tii at nerdshack.com>
Subject: Re: [R-390] What's in the window?
To: R-390 at mailman.qth.net
Message-ID: <20101119090034.19EAE34E592 at karen.lavabit.com>
Content-Type: text/plain; charset="us-ascii"; format=flowed
Glenn wrote:
>Were any R390A receivers built with Teflon wire?
Note that the seller repeats the patently false claim that 390As were
"Classified Top Secret until 1967" (as is well known, and has been
discussed on this list many times, they were never classified at all
-- much less, "Top Secret") and the apocryphal "stories" of current
use by the NSA. I wonder if the seller got permission to use the
quoted material.
One should take everything said in the listing as puffery or worse.
Best regards,
Don
------------------------------
Message: 10
Date: Fri, 19 Nov 2010 14:02:04 +0000 (UTC)
From: bavarianradio at comcast.net
Subject: Re: [R-390] What's in the window?
To: Glenn Little WB4UIV <glennmaillist at bellsouth.net>
Cc: r-390 at mailman.qth.net
Message-ID:
<1754851235.724705.1290175324432.JavaMail.root at sz0038a.westchester.pa.mail.comcast.net>
Content-Type: text/plain; charset=utf-8
Hi all, I don't want to challenge the collective sensibility here, but it looks
like an interrossiter to me... (just my$.02) Ross
----- "Glenn Little WB4UIV" <glennmaillist at bellsouth.net> wrote:
That would probably be the 8 Ohm after market audio stage.
Were any R390A receivers built with Teflon wire?
All that I have seen were built with nylon covered PVC (or at least
that is what it looks like).
73
Glenn
WB4UIV
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------------------------------
Message: 11
Date: Fri, 19 Nov 2010 09:12:55 -0500
From: rbethman <rbethman at comcast.net>
Subject: Re: [R-390] What's in the window?
To: R-390-List <R-390 at mailman.qth.net>
Message-ID: <4CE685E7.4010002 at comcast.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
*All,
*Here is a "copy of the extensive info": (The area is bounded by ** at
the beginning and ** at the end.)
Quite clearly---> ** aftermarket 8 ohm audio stagenestled in the space
next to the PTO**
<http://cgi.ebay.com/Late-model-EAC-Collins-R-390A-R390A-R-390-/280589662946?pt=LH_DefaultDomain_0&hash=item4154727ae2>
I find all the totally off the wall "answers" ludicrous. YMMV
Bob - N0DGN
> Thisreceiver, EAC Serial #2844, is apparentlyone of the latest ones,
> as shown by the October 1967 date stamp in the photos. It has the
> latest updates, including the IF module filter trimmers and the
> desirable Cosmos PTO with a wide end point adjustment.
>
> It is typical mil-spec, usingmodular construction, coil forms
> impregnated with Araldit, and teflon wire insulation. As shown in the
> photos, the engraved front panel and original knobs and meters appear
> practically new. The gearing is tight, yet free, showing little, if
> any wear. All controls are smooth and effective, and all filters and
> bands function as they should. This late model receiver is a hot
> performer, perhaps owing to the extra care taken in its overhaul.
>
> For example, not only were weak tubes replaced, but also low noise JAN
> tubes were installed in the RF, mixer, and first IF. Alignment was
> done a second timeafter a month's burn-in.
>
> In addition to the usual cleaning, lubing, and shaft alignment, tuning
> lightness and smoothness were further enhanced by deburring and mesh
> adjustmentof right angle display drive gear teeth, and resetting the
> typically over-stiff anti-backlash spring tension in the KC shaft
> drive gear. Meters were disassembled to adjust movement bearings often
> overtightened at the factory. Noise was reduced and signal input
> increased by using a toroidal balunto get proper antenna balance and
> correct match to the receiver's balanced 150 ohms, instead of the
> typical practice of feeding one side with 50 ohms through a nice
> looking adapter.
>
> For longer tube life, two CL 80 thermistors were added to control
> filament stressing inrush. A 44 ohm resistor ballast was installed to
> save unnecessary wear on the3TF7 ballast tube, (which is also
> included). After cleaning and mechanical alignment the controls, gears
> and slug racks were lubricated with Bel Ray synthetic aviation oil
> (some single malt Scotches cost less)
>
> While an overhaul such as this goes far beyond the norm, this receiver
> is also far beyond the norm.
>
> Classified Top Secret until 1967, the R-390A is considered by some to
> still be the best HF receiver ever designed. Stories are told that
> R390A's are still in use by the NSA, where senior operators far prefer
> their quietness over modern, mega-dollar receivers from Harris, Racal
> and Watkins-Johnsonwith their noisy synthesizers and digital filters.
>
> New R-390A receivers built in 1968 (the year following this one) were
> briefly sold to the public for $1700, which would equal $11,000 today.
>
> <Included in the sale are are the ballast tube, all 3 covers, and the
> antenna matching toroid.In addition, a compact HiFi speaker is
> included to go with the ** aftermarket 8 ohm audio stagenestled in the
> space next to the PTO**. (shown in the photos).>
>
> Shipping includes professional packing and insurance. Fedex ground
> seems to have the best track record, but I'm open to suggestions.
> Local pick up is preferred. As with all electronics, no returns.
> Ships to USA only.
>
------------------------------
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